I've been unhappy for a year by how I was fit at a BB store when I wanted to check a problem with a 910 driver and they felt an off the rack 913 D2 driver was the answer. The local AFC was closed for weather at the time. I went back to my AFC in late October to improve the situation. We worked with the 913 D2, a 915 D2 and the 915 shafts. Ended up with a 915 Blue R flex and a much improved performance, even on the 913. At any level, the right equipment makes a difference. I won't stray from a trusted fitter again.